Battle for Wesnoth

Version I'm using

 * Last version: 1.6.5
 * The game sometimes crashes without any reason. I don't get an error when it shuts down. It's just gone and all other applications and Windows itself continue running as nothing happened. [Cause found: Battle for Wesnoth 1.6.5 for Windows crashes if you don't have Administrator (root) rights.]

Multi-player with time limit

 * First time settings:
 * Init limit 270 (Longest time allowed for first turn, 4min30sec)
 * Reservoir 330 (Longest time possible for any turn, 5min30sec)
 * Turn bonus 60 (Added to time at end of turn, 1min0sec)
 * Action bonus 13 (Added to time for each attack, recruit and village capture, 0min13sec)
 * My preferred settings (first try):
 * Init limit 270 (450) (7min30sec)
 * Reservoir 330 (450) (7min30sec)
 * Turn bonus 60 (120) (2min0sec)
 * Action bonus 13 (20) (20sec)
 * Hmm, the settings above weren't working out as I expected. I had plenty of time in the first few turns but I had too little time in later turns.
 * Let's try raising the Turn bonus in order to be sure of a fairly large amount of time for each new turn. This means it's much less important to spread out the time you get at the start over all the turns in the game.
 * My preferred settings (second try):
 * Init limit 270 (270) (4min30sec)
 * Reservoir 330 (270) (4min30sec)
 * Turn bonus 60 (210) (3min30sec)
 * Action bonus 13 (20) (20sec)
 * This is much better, even if you completely screw up and use up all your time you've still a decent amount of time to recover from the bad situation the next turn.
 * My preferred settings (a bit more relaxed):
 * Init limit 270 (270) (4min30sec)
 * Reservoir 330 (330) (5min30sec)
 * Turn bonus 60 (240) (4min0sec)
 * Action bonus 13 (30) (30sec)
 * This is for when you play a matchup of factions you're not yet used to.
 * My preferred settings (for playing against another beginner):
 * Init limit 270 (300) (5min0sec)
 * Reservoir 330 (300) (5min0sec)
 * Turn bonus 60 (300) (4min0sec)
 * Action bonus 13 (13) (irrelevant)
 * This is for when you play a matchup of factions you're not yet used to.

About terrain defense perecentage

 * If a unit has a terrain defense of 80% in hills and 90% in mountains that amounts to 10% chanche and 20% chance of being hit. So even the chance of being hit is very low in the hills they are still much worse, as you receive twice as many hits (100% more hits). Of course you'll hardly any receive in hills but the mountains are still much better.
 * If a unit has a terrain defense of 20% in shallow water and 10% in deep water the situation is quite different. The chance of being hit is 80% in shallow water, and 90% in deep water. You'll receive many hits in both, and you'll receive just a little more hits in deep water. But definitely not twice as much! That is of course quite impossible if 80% the attacks hit in shallow water, there is just 20% more left that can be hits. You'll get just 90%/80%-1 * 100% = 1,125-1 * 100%= 12,5% more hits.
 * So there not much difference between quite bad defense and horrificly bad defense. But there is a quite a difference between a quite good and a terrificaly good defense. In both situations you'll survive long, but if surviving is your goal you better look for the really very best terrain defenses. So you should worry about 10% difference in hills, mountains (humans and elves), forests (elves), etc. You don't need to worry that much about stepping into deep water. Most blows will hit anyway.